Commingling-pump for carbonators.



No; 833,257. PATENTBD OCT. 16, 1966.

- A. W. SOUTHEY & J. J. MEGIRIAN.

GOMMINGLING PUMP FOR GARBONATORS.

APPLICATION FILED 8111. 8 1906.-

I 3 SHEETS-SHEET 3.

ATTORNEY.

UNITED STATES- PATENT OFFICE.

ALFRED WILLIAM SOUTHEY, OF LONDON, ENGLAND, AND JOSEPH J.

MEGIRIAN, OF NEW YORK, N. Y.

Specification of Letters Patent.

Patented Oct. 16, 1906.

Application filed January 8 1906. Serial No. 295,146.

To all whom it may concern.-

Be it known that we, ALFRED-WILLIAM SOUTHEY, a subject of the King of Great Britain, residing atLondon, England, and

Josnrrr J. MEGIRIAN, a native of Turkey, residing at New York city, State of New York, have invented certain new and useful Improvements in Oommingling-Pumps; and

we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, referencebeing had to the accompanying three sheets of drawings, illustratmg one form ofour invention and forming part of this specification, in which corresponding parts are designated by similar I marks of reference, and in which automatic in action and operation-for thoroughly commingling a certain quantity of a liquid or liquids with a certain quantity of a gas or gases, preferably for immediate use, and relates more particularly to that class of pumps or apparatus of this or a similar nature in which the two or more substances to be intimately commingled at least one of these is at a pressure sufficiently greater than the other or others as to be able to furnish the ower required for effecting in a satisfactori y rapid and thorough manner, first, the

drawing in of the substance or substances of lesser pressure; second, the commingling of the different substances third, the discharging of the liquid so charged with gas immediately following their union and as needed.

A further important advantage possessed by our commingling-pump is the circumstance that if utilized, for eXample,to furnish carbonated or sparkling beverages and employing for this purpose and as an actuating medium carbonicacid gas or other suitable gas stored as customary in contain ers at a comparatively high pressure or when similarly actuated with liquid or compressed air such gas, performing work during its expansion in the apparatus, is thereby lowered in temperature to a considerable degree, and thus capable of cooling the liquid so acted upon without the use ofice or snow.

Referring now to the drawings, in a double-acting cylinder 1, preferably arranged vertically, a piston 2 is secured to a hollow tubular piston-rod 3 by means of nuts 4 and 5. This piston-rod 3 is closed at its free or lower end by means of a screw-plug 6, to which is attached one end of a flexible band 7, the other end being secured to a drum 8, upon which this band 7 may be wound. Drum 8 is loosely mounted on a stationary spindle 9, round which it may turn freely. A suitable spring 10 is contained within drum 8, the inner end of which is secured to spindle 9 and the outer end to drum 8, arranged and adjusted in such a manner as to at all times eXert a pull on the band 7,which causes the piston to be in its highest position Within the cylinder when the pump is not in operation. A casing 11 houses drum 8 and piston-rod 3, the latter passing through a stufling-box 12 and packing 13. Secured to the upper cylinder end 14 and reaching downward into tubular piston-rod 3, passing freely through nut 5, is a tube 15, open at its lower end and its upper end communicating through conduit 16 with conduit 17. The latter connects valve-chambers 18 and 19. A conduit 20, provided with an adjustable pressurereducing valve 21, serves to admit gas under pressure from a container (not shown) to valve-chamber 18, while valve-chamber 19 communicates through conduits 22 and 23 with the space y within the cylinder below the piston 2.

Valves 24 and 25, secured to valve-stems 26 and 27, respectively, are adapted to close the two ends of conduit 17 when being depressed. Valve 29, secured to valve-stem 36, is adapted to establish communication between the space y below piston 2 and the container (not shown) for the liquid to be acted u on by the gas through conduit 28, valve- 0 iamber 30, and conduit 31. The liquid is ordinarily at atmospheric pressure or at a pressure considerably below the pressure of the gas employed, which enters the pump through conduit 20. Valve 32, secured to valve-stem 37, is adapted to permit the discharge of the contents of thespace at above the piston within the cylinder whenever this piston is forced upward through valve-cham ber 33, conduit 34, and saout 35. An adjustable safety or relief va ve 43, Fig. 3, held to its seat by a spring, is provided to establish communication between conduit 17 and the atmosphere through conduits 44 and 45 whenever the pressure in the apparatus exceeds a permls'sible maximum. Cam-disk -39, rotatably mounted on screw-stud 38, car- 8 brought into communication with a source of a gas under high pressurecarbon dioxid, for example-while conduit 28 communicates with a vessel containing a liquid-water, milk, beer, fruit-juice, &c.to be carbonated. If then cam-disk 39 is turned horizontally by means of handle 47, so as to place valves 24 and 25 in the position shown in Fig. 1, the gas entering conduit 20 has to pass valve 21 to be reduced in pressure to the desired extent and to prevent its rushing into the appa ratus too quickly, flowing then through valve-chamber 18 and conduits 17 and 16 into and down tube 15, thence into and up tubular piston-rod 3, entering the space x within the cylinder above the piston 2, through openings 46 in the upper part of nut 5. In this manner a certain ressure is exerted against the upper side of piston 2, with the result that this p1ston is forced downward, thereby forcing the liquid contents in spacey below piston 2 out through conduits 23 22, valve-chamber 19, and conduits 17 and 16 into and down tube 15, thence into and up tubular piston-rod 3, and through openings 46 in the upper part of nut 5 into space above piston 2. From this is seen that the two streams of gas and liquid meet in conduit 16 to flow together through tortuous passages into space 00, thereby most thoroughly and intimately commingling. Since the pressure per square inch in the spaces as and y is the same, it is obvious that the effective area must be greater in 00 than in y, which is accomplished by making tubular piston-rod 3 of sufficiently large diameter. The liquid in space y had been drawn in throughout the preceding upstroke. During the downstroke of piston 2 the tubular piston-rod 3, to the lower end of which band 7 is fastened, partly unwinds the latter from drum 8, thereby increasing the tension of spring. 10 to such an extent that when at the end of the downstroke cam-disk 40 is turned ninety degrees from the position shown in Figs. 1, 2, and 5 this spring is capable of forcing up piston 2, thereby drawing a fresh supply of a liquid into y while discharging the carbonated contents of 00 through valve-chamber 33, conduit 34, and spout 35. The valves and the passages controlled by them are preferably arranged in such a manner that by turning camdisk 40 but forty-five degrees from the position shown in the drawings both ends of con duit 17 may be closed, as well as conduits 28 and 34, for the purpose of avoiding a high pressure in the ump when not in actual o eration. Shoul however, the pressure witl in this apparatus increase beyond a certain predetermined point, relief-valve 43, springloaded as may be required, will permit the escape of part of the contents of space 90 through conduits 16, 44, and 45. Of the four cam-operated valves only valve 29 is provided with a spring 41, confined by rim 42, to under all circumstances secure contact between the cam and valve-stem 36, while the remaining valve-stems are forced against the cam by the ressure of the contents of the apparatus.

V l e have found by experiment that by admitting to an apparatus of the character described gas at as high a pressure as the same is carried in steel containers and causing expansion to take place within this apparatus the great reduction in temperature thus made possible causes not only a more thorough and intimate but also a more permanent commingling of the different substances introduced, which is of importance when carbonating liquids.

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a comminglingum having a cylinder divided into two cliaml n ers by a piston having different pressure areas, a valved gasinlet to the chamber having the greater piston area, a valved fluid-inlet to the other chamber, a valved inlet connecting both chambers,

and a valved outlet from the chamber having the greater piston area, all valves controlled y a cam member.

2. In a commingling-pum having a cylinder divided into two cham ers by a piston having different pressure areas, a valved gasinlet to the chamber having the greater piston area, a pressure-reducing valve in said inlet, a valved fluid-inlet to the other chamber, a valved inlet connecting both chambers, and a valved outlet from the chamber having the greater piston area, all valves controlled by a cam member.

names to this specification in the presence of the subscribing Witnesses.

ALFRED WILLIAM SOUTHEY. JOSEPH J. MEGIRIAN.

Southey:

FRANCIS F. MoARnLE,

J. PHILLIPS ORAWLEY. Witnesses to signature of Joseph J. Megi- T131111 JOHN MEGIRIAN,

MELIK SHIRINIAN.

Witnesses to signature of Alfred William 

